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Definition
| A large volume of air in which temperature and humidity are nearly the same in different locations at the same altitude. |
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Definition
| An air mass that forms over the desert will be ________ and _________. |
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| A cool, dry air mass moves into our area from Canada. What do we call it? |
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| A warm, moist air mass moves into our area from the Gulf of Mexico. What do we call it? |
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Definition
| Boundaries between air masses are called what? |
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| On a weather map, a red line with half circles represents this. |
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| On a weather map, a purple line with half circles and triangles represents this. |
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Definition
| On a weather map, a blue line with triangles represents this. |
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Definition
| On a weather map, a line with blue triangles and red semi-circles represents this. |
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Definition
| Over the course of the day, you notice that the few cirrus clouds in the sky have gradually lowered, and thickened into nimbostratus clouds. Then, it rains for a few hours before clearing and drying up. What type of weather front has most likely passed through your area? |
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Term
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Definition
| At yesterday's baseball game, you noticed some tall, cumulonimbus clouds building and moving in. Thirty minutes later, the game was cancelled because thunderstorms were passing through. Today, the weather seems to be clear, calm, and dry. What type of front most likely passed through during the game the night before? |
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Definition
| A weather front may stall over an area, and produce cloudy skies, rain, or storms for days. What type of front do we call this? |
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Definition
| This type of weather front, which often has a "triple point" on a weather map, produces intense storms that weaken over the next few days, as the warm, moist air that fuels the storm is cut off. |
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Term
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Definition
T or F
High pressure systems are usually associated with clear skies and gentle breezes. |
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Definition
T or F
Low pressure systems usually bring rainy, stormy weather. |
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Term
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Definition
| In the United States, hurricane season is from __________________ to ___________________. |
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Term
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Definition
| Ocean water where hurricanes develop is ____ degrees F, or more |
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Term
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Definition
| What is the "fuel" for a hurricane? |
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Definition
| What effect of hurricanes kills more people than all others combined? |
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Term
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Definition
T or F
Once the wind speeds of a tropical depression reach 40 mph, we call it a tropical storm. |
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Definition
T or F
A tropical storm becomes a category 1 hurricane when wind speeds reach 95 mph. |
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Definition
| What scale do we use to measure hurricane strength? |
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Term
| The National Weather Service |
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Definition
| Who issues winter storm watches/warnings? |
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Term
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Definition
| As cold, dry air moves south from Canada over the Great Lakes, it gains warmth and moisture. Once the air gets back over land, in our area, it releases that moisture as snow. We call this a _______________________. |
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Term
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Definition
| Severe thunderstorms can release a blast of air that hits perpendicular to the ground at up to 80 mph. What do we call this? |
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Term
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Definition
| Lightning is generated by _____________________ colliding, while being thrown up and down inside storm clouds. |
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Term
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Definition
| ___________________ builds thunderstorms quickly, while ___________________ kills the storm. |
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Definition
| A _____________ is a violently rotating column of air that stretches from a cloud to the ground. |
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Definition
| What country is the tornado capitol of the world? |
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Definition
| Name two thunderstorm safety tips... |
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Term
| The Enhanced Fujita Scale |
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Definition
| What do we call the scale that we use to rate tornadoes? |
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Definition
| This is a scientist who studies weather. |
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Definition
| Isobars that are close together on a weather map indicates that area is what? |
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